Keprej, one of the leading manufacturers in the field of power products, offers ups systems [data server]. Applications: computer system, data processing instruments, communication, medical instruments, etc. Functions: it gives a stable output voltage; when the input voltage goes low/high, the ups will give stable output voltage through its battery. The ups will also give a stable output when the electricity power fails. After 20 to 30 minutes of power failure, the ups will give an alarm to enable the customer to put off the computer so that the data will not be corrupted. Specifications: capacity - 0.5 kva to 2.0 kva; ac input - 220 v ±15%, 50 hz; dc input - 12/24/48 v; output - 220 v ±15%, 50 hz; waveform - quasi-square wave; and frequency - 50 hz. Features: with latest electronics solid state technology, mosfet based high frequency.